{"action":"Upgrade lettermint to 1.5.1 or later.","affected":[{"fixed":"1.5.1","introduced":"0"}],"component":"lettermint","cve_ids":["CVE-2026-27492"],"ecosystem":"npm","epss":0.00186,"exploited":false,"fixed_versions":["1.5.1"],"ghsa_id":"GHSA-49pc-8936-wvfp","id":"tcs_01M5KEZZJP51TW419V81VB55KY","modified_at":"2026-02-23T22:53:00.479537Z","published_at":"2026-02-20T21:14:49Z","references":["https://osv.dev/vulnerability/GHSA-49pc-8936-wvfp","https://github.com/lettermint/lettermint-node/security/advisories/GHSA-49pc-8936-wvfp","https://nvd.nist.gov/vuln/detail/CVE-2026-27492","https://github.com/lettermint/lettermint-node/commit/24a17acbc2429c5eb30391f9df3dc0ea7aaf4de1","https://github.com/lettermint/lettermint-node","https://github.com/lettermint/lettermint-node/blob/main/CHANGELOG.md#151-2026-02-20"],"severity":{"label":"medium","score":4.7},"sources":[{"source":"osv","source_id":"GHSA-49pc-8936-wvfp","url":"https://osv.dev/vulnerability/GHSA-49pc-8936-wvfp"}],"summary":"Lettermint Node.js SDK leaks email properties to unintended recipients when client instance is reused"}